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@MTE L V NMED STATES 'OHAR-LES E. GORE AND JOSEPH EISELE, OF LAFAYETTE,INDIANA; SAID EISELE ASSIGNOR TO BENJAMIN F. MASTEN, OF SAME PLACE.

BRAKE-3H0 E.

SPECIFICATION forming part of Letters Patent No. 270,583, dated January16, 18 83. Application filed Octoher26,188-2. (No model.)

To all whom it may concern:

Beit known that we, CHARLES E. GORE and JOSEPH EISELE, citizens of theUnited States, residing at La Fayette, in the State of Indiana,

have invented certain new and useful Improvements in Gar-\Vheel BrakeBlocks and Shoes, of which the following is a specification.

The object of our present invention is to provide a brake-block and abrake-shoe of such construction that they can be readily and cheaplymade and expeditiously and securely connected together. This object wehave accomplished in the brake block and shoe hereinafter described,illustrated in the accompanying drawings, and particularly defined inthe claims at the end of this specification.

Figure l is a perspective view of the front of the brake-block, showingin dotted lines above the same the brake-shoe at right angles thereto.Fig. 2 is a perspective view of the back of the brake-shoe, the upperportion being broken away. Fig. 3 is a sectional view through the shankof the flanged lug of the brake-shoe. Figs. 4 and 4 are views in centralvertical section of the brake block and shoe, respectively. Fig. 5 isaperspective view, showing the brake block and shoe in position on thebrake-beam.

The block for holding the brake-shoe is provided at its back with thelips or jaws A, which fit over the brake-beam, as shown, and throughthis beam and the perforation 1) of the block is passed theretaining-bolt D, by means of which the block is securely held in place.On the back of the block are also formed the lateral flanges G, whichbear against the beam and prevent any lateral rocking or twisting of theblock thereon. These flanges O are preferably furnished with suitablelugs, adapted to fit into corresponding sockets in the beam and to serveas additional security against looseness or displacement. 0n the underside of the upper one of the flanges A is formed a transverse recess, B,to receive the hangers by means of which the brake-beams are suspendedfrom the car-truck frame.

In the upper part of the blockis formed the perforation E, from whichextends the contracted slot F to the top of the block. Back of theperforation E is formed a recess, the inner wall, f, of which is madeinclined, as

shown, for a purpose to be hereinafter stated. The face of theshoe-block is provided about its central portion with the oblong recessd, above which is formed the vertical groove G, 5 and is furnished nearits bottom with the vertically-oblong perforation' H, having theinclined bottom h.

From the above description it will be seen that in order to attach theshoe-block upon the beam the jaws A are slipped over the same, so thatthe lugs on the flanges 0 enter the sockets adapted to receive them, andthrough the perforation D and a corresponding perforation in the beam ispassed the headed retaining-bolt D, and by means of the threaded nutupon this bolt the block is held firmly on the beam. The square head ofthe bolt is prevented from turning by the side walls of the recess d.

The brake-shoe, which is designed to be attached to the above-describedblock-in a manher to be hereinafter described, consists of a segmentalplate with face corresponding in curvature with that of the car-wheel.Upon the back and near the top of this shoe is formed thelaterally-oblong lug I, adapted, when the shoe is in position on theblock, to rest in the perforation E, the flanged head J of the lugbearing against the inclined wall fot the recess. Below the lug I, andslightly above the center of the shoe, is formed an inclined lug, L,corresponding in .shape with and adapted to fit into the groove G of theblock. The brake-shoe is provided at the back near its bottom with theoblong lug or horn K, the lower curved surface of which is madedownwardly inclined, as shown, to enable it to hook more securely in theperforation H.

In order to attach the brake-shoe upon the block, it is placed at rightangles thereto, with the flanged lug I above the slot F, as shown inFig. 1, so thatthe narrowed portion or shank of the lug may pass readilythrough the slot F into the perforation E. The shoe is then 5 turned aquarter of a revolution and is pressed upward, so that the'lugl bearsagainst the top of the perforation E until the lug K is inserted intheperforation H, when it is dropped into place. It will be noticed thatthe perforation E is somewhat greater in vertical diameter than thedistance between the flat sides of the lug, thus permitting a slightmovementof the latter, and as the shoe is dropped the flange J movesdownwardly on the inclined wallf, and the shoe is drawn by its gravitytightly to the block. The inclined lug Lis at the same time caused tofit snnglyin the groove (.i, and the inclined bottom of the lug K ispressed against the correspondingly-inchned wall of the perforation H,thus serving to prevent the separation of the shoe and block.

From this construction it is apparent that the shoe can only be releasedby reversing the above operation, and as this obviously cannot occurfrom any motion of the cars it is safely guarded against accidentaldisplacement.

t will be seen that by reason of their peculiar shape'the block and shoecan be readily cast, as in so doing one core only is needed for theblock, while none is required for the shoe. Again,itwill benotieed thatall bolts orhinged lugs for attaching the block and shoe together aredispensed with -a feature of importance, as these, when lost: or broken,are not always readily replaced.

Our present improvements enable us to furnish a cheap brake block andshoe of such construction that when ashoe becomes worn it can be quicklyreplaced with a new one.

Having thus described our invention, what we claim as new, and desire tosecure by Letters Patent, is

1. The combination, with the brake block having at its top theperforation and slot, of the brake-shoe having a flanged lugadapted toenter said perforation and slot, substantially as described.

2. The combination, with the brakeblock having the perforation E, andslot F, and per foration H, of the brake shoe having the flanged lug Iand lug K, substantially as described.

3. The combination, with the brake block having a slot, F, aperforation, E, a perforation, H, and inclined wallf, of a brakeshoehaving a flanged lug, I, and lug K, substantially as described.

4. The combination, with the brake block having the perforation E, slotF, groove G, and perforation H, of the brake shoe having the flanged lugI and the lugs K and L, substantially as described.

5. The brakeshoe having on its back the flanged lug 1 and log K, havingdownwardlyinclined bottom, substantially as described.

In testimony whereof we have hereunto set our hands this 21st day ofOctober, 1882.

CHARLES E. GORE. JOSEPH EISELE. \Vitnesses:

FRANK M. CARY, ALFRED H. DIVER.

